Sound record



c. c. COOK.

SOUND RECORD. APPLICATION FILED JUNE 21. I919.

1,409,674. Patented Mar. 14,1922.

Fig.1..

PATENT OFFICE.

GHESTER CI COOK, OF MOMINNVILLE, TENNESSEE.

SOUND RECORD.

Specification of Letters Patent.

Patented Mar. 14, 1922.

Application filed June 21, 1919. Serial No. 305,732.

To all whom it may concern:

Be it known that I, CHESTER C. CooK, a citizen of the United States, residing at McMin1iville,. in the county of Warren and State of Tennessee, have invented certain new and useful Improvements in Sound Records, of which the following is a specification.

The present invention relates to improvements in sound records or disks for phonographs,- 'gr aphaphones or the like. At the present time there are two distinct types of these disk records in use, one having one surface only grooved for musical ,reproduction and the other having both sides or sur faces grooved. The advantages of the latter over-the former, especially as regards the phases of economy of space and expense, are

too'well lmown to need comment upon. The great disadvantage, however, lies in the fact that it is seldom that the purchaser gets his own selection on both sides. In other words, while he may select the record for the reproduction on one side, he is obliged to take the manufacturers selection on the other. He has, of course, resort to the single surface reproduction type but in doing so he loses the important advantages of the double type which have been referred to above.

The object of this invention is to provide an article of manufacture-which will permit the purchaser to obtain a sound record of the double type with the combination of reproductions he desires. This is carried out by making the records, preferably relatively thin and each grooved with the sound reproduction upon' one side, these being so su plied to the retailer of the sound recor s. It should be understood that the term relatively thin used above and in the claims is intended to. comprehend a disk member which is of such a thinness or thickness as to be impracticable for the ordinary handling incident to actual use. These disks are sufiiciently thick, however, to permit the purchaser to try out his selection and when he has made his choice of; two such records, the retailer places adhesive upon the backs and sticks the two disks together. This form of connection is not necessarily a permanent one because it may be desired to separate the two records for a subsequent change. At any rate my proposal is to employ a readily fusible adhesive so that separation may be efie'cted if desired.

One method of carrying out the invention may be to provide each disk member substantially one-half the thickness of the ordinary 'well known reco'rd disk now in use so that when the two parts are combined they w1ll .equal the thickness of that of the normal record referred to.

It will be apparent that two records or disks connected-in this manner possess sufficient strength to withstand the usual handling incident to playing without breakage, effecting a saving in storage space required, and yet afford a combination of selections which the purchaser most desires. This arrangement is especially advantageous where" the reproduction is of greater length than would be capable of impression upon a single side of a record, in which case the continuation may be placed upon the disk part which forms the other side of the combination record.

I desire it to be understood that I do not wish to be confined to the idea of connection of the two relatively thinrecords-by means of adhesives, for the invention may be carried out by providing mechanical clamping means for connecting and holding the combination records together.

These features will be more apparent by reference to the drawing hereto appended forming a part of this specification, wherein Figure 1 represents two thin record disksof the type I propose to employ for combi 'j nation purposes and which, as hereinbefore" explained, may be connected by an adhesive;

Figure 2 is a plan view of a sprlng ring which may be utilized instead of cementing the records together;

Figure 3 is a similar view of a modified form of sectional ring; and

Figure 4 isa cross section through the rinf, considerabl enlarged.

e ring -in igure 2, designated 1, is

U-shaped in cross section as shown in Figure 4, and is designed to be sprung open and over the peripheral edges of the two disks and bein of spring material the distance between t e two sides is, preferably, slightly less than the thickness of the two disks so that they will be effectively gripped and held against each other. It will be apparent that any two disks may thus be arranged in combination and any onechanged at will whenever desired.

The form of ring depicted in Figure 3 difiers only in that it is provided with hinged sections 2 and 3, connected at 4, and this merely facilitates the' application of the connector device or clamp to the records.

The ring forms rather an attractive than a detracting feature, especially if finished with a highly niekeled or 'silvered surface.-

Further, the metal provides a protection not only against the breakage but against scratching of the sound v reproducing or. grooved surfaces by contact with dust upon theta-ble of the reproducing-apparatusor elsewhere.

, Having thus described my invention, what" I claim as new is 1. As a new artlcle of manufacture,

"sound record comprising two separate complete relatively thin disks, and meansengageable with said disks for connecting'them back to back in such manner as to be readily separable.

2.- As a new artlcle of manufacture, a

sound record comprising two relatively .thin.

' disks each having a sound reproductionupon one side of a predeterminedselection, and

yieldable means engag'eable about the edges.

disks back toback. p y v 4."As anew article of manufacture, a combination sound record comprismgf'two relatively' thin disks each having the sound "reproductionupon; one'side only, and amember engageable aboutthe peripheries o the-two disks to connect'the'two disks-back tofback, said ringbeing'of spring material! Y ring member engageable about the peripheries of the two 'disks-toconnect the two substantially .U-shaped injcr'oss section and the distancebetweenthegsides of said ring, being slightly less thanr' the thickness'of thetwo disks whereby said. disks "will "be-firmly clampedwhen engaged by the ringg jl i 1 ;In testimony whereof Iaifix-m si" CHESTER QC OK.

ture. 

